Toxicity of cationic surfactants to phosphate-accumulating bacterium (CROSBI ID 541946)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija
Podaci o odgovornosti
Hrenović, Jasna ; Ivanković, Tomislav ; Tofant, Alenka
engleski
Toxicity of cationic surfactants to phosphate-accumulating bacterium
The harmful effects of surfactants to the environment are well known. The antibacterial effect of cationic surfactants against the pure culture of phosphate (P)-accumulating bacterium Acinetobacter junii was investigated. The estimated EC50 values of the N-dodecylpyridinium chloride (DPC) for growth inhibition was 1.4± ; ; ; 0.5 x 10-6 mol L-1 and for the inhibition of the P-uptake rates 7.3± ; ; ; 2.6 x 10-5 mol L-1. The estimated EC50 values of the N-cetylpyridinium chloride (CPC) for growth inhibition was 4.9± ; ; ; 1.3 x 10-7 mol L-1 and for the inhibition of the P-uptake rates 7.7± ; ; ; 2.9 x 10-6 mol L-1. The estimated EC50 values of the hexadecyltrimethylammonium bromide (HDTMA) for the inhibition of CFUs in the pure culture of A. junii was 3.27± ; ; ; 1.12 x 10-7 mol L-1 and for the inhibition of the P-uptake rates 2.47± ; ; ; 0.51 x 10-6 mol L-1. The results proved a high acute toxicity of the three investigated cationic surfactants against A. junii. This suggests the importance of controlling the amounts of cationic surfactants in influent of the wastewater treatment systems in order to avoid the possible failure of the biological P removal from wastewaters.
surfactants; bacteria; wastewater
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Podaci o prilogu
90-90.
2008.
objavljeno
Podaci o matičnoj publikaciji
Abram, Maja
Zagreb: Pressum
978-953-96567-7-3
Podaci o skupu
4. croatian congress of microbiology with international participation
poster
24.09.2008-27.09.2008
Zadar, Hrvatska